Patent DE721643C successfully refreshed from Google Patents.
DE721643C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method and device for operating filter devices with a circuit washing device for the filter material
Assignee: WASSERREINIGUNG und WAERMETECH
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Filing: 1938-07-21
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Granted: 1942-06-12
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Expires: 1958-07-21
Abstract
No abstract record available.
Inventors
- 👤 Fritz Umlauf
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 12:34
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/10; B01D24/16; B01D24/28; B01D24/30; B01D24/46; B01D24/4668; B01D24/4689
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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